The Welsh international started on the right as part of a front three for the Black Cats at Queens Park Rangers, and was on the end of a couple of hefty challenge in the opening stages.

However, on the half-hour mark, Williams went in for a challenge and overstretched his leg, picking up a hamstring problem in the process.

Having signalled to the Sunderland bench of a change, Williams looked like he was going to attempt to run it off, but then there was a break in play moments later, Sunderland skipper Lee Cattermole also urged for a change.